browning sections on leaves

[huntsman]

What causes browning sections on a leaf?

Too much fertiliser / nutrient input?

I have several plants that have, say, 5% of each leaves browned since I added nutes a few days ago. They all look healthy enough, but who knows??

Any reason for concern?

 

[Silver_Surfer]

Fertilizer burn usually causes browning around the edges of the leaf at first.

Is that what you're seeing, cause I missed the pic.

 

[queequeg152]

is the browning at the new leaves or the old?
is there any yellowing between the leaves veins?

 

[Flakes]

What causes browning sections on a leaf?

Too much fertiliser / nutrient input?

I have several plants that have, say, 5% of each leaves browned since I added nutes a few days ago. They all look healthy enough, but who knows??

Any reason for concern?

Google tells me yellow/brown spots on leaves may be a sign of overwatering...

 

[Exavier]

I'd think over watering as well, or Soil not draining well.

 

[franzb69]

overwatering or overfertilization perhaps?

 

[huntsman]

Thanks for the replies...

Pictures long overdue as a result of....well, laziness.

It has mostly cleared up now, and curling has set in...LOL!

 

[franzb69]

looks fine to me. probably from the heat of the sun or something.

 

[huntsman]

You may be right...We'd also had torrential rains for a while before so maybe too much water...

Ah well, on to the next problem...